It looked like a normal photo — six smiling friends posing in the woods. But what people noticed later sent shivers down their spine.

At first glance, everything seems innocent. A sunny day in Chile, laughter, and a perfect group selfie surrounded by green hills. But once the photo hit Reddit, viewers began to notice something… deeply unsettling.

Hidden between two of the women on the left side of the picture, there appears to be another face. Pale. Expressionless. Watching. “I swear, when I finally saw it, I got goosebumps,” one person wrote. “It felt like someone was standing right behind me.”

Others tried to explain it away — a trick of light, shadows, or an optical illusion. But many weren’t convinced. “I usually laugh these off,” another user said, “but not this time. Once you see it, you can’t unsee it.”

No one knows who — or what — that seventh face belongs to. Some say it’s just a friend hidden in shadow. Others believe it’s something far more chilling.

Maybe it’s a reminder that not every smile hides something warm. Sometimes, it hides something that’s still watching.